SP3494CN Sipex Corporation, SP3494CN Datasheet
SP3494CN
Manufacturer Part Number
SP3494CN
Description
Manufacturer
Sipex Corporation
Specifications of SP3494CN
Date_code
04
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■ Operates From A Single +3.3V Supply
■ Interoperable With +5V Logic
■ +200mV Receiver Input Sensitivity
■ -7V to +12V Common-Mode Input
■ Devices Allow Up To 32 Transceivers
■ Driver/Receiver Enable Lines (SP3494)
■ 2nA Low-Power Shutdown Mode (SP3494)
■ Compatible With The MAX3488, LTC490
■ Compatible With The MAX3486 and 75176
DESCRIPTION
The SP3493 and the 3494 devices are +3.3V, low power transceivers that meet the
specifications of the RS-485 and RS-422 serial protocols. The SP3493 and the 3494 devices
are pin-to-pin compatible with the Sipex SP3490 and the SP3481 devices, respectively, as well
as other popular industry standards. The devices feature Sipex's BiCMOS process, allowing
low power operation without sacrificing performance. The partially slew-rate limited drivers
minimize EMI and reduce reflections caused by improperly terminated cables allowing
error-free data transmission. The SP3493 is a full-duplex low power transceiver that will
deliver a data transmission rate up to 250kbps. The SP3494 is a half-duplex partially slew-rate
limited transceiver that will deliver a data transmission rate up to 2.5Mbps. The SP3494 is
equipped with a low-power shutdown mode and driver/receiver high-Z enable lines.
10/16/02
Voltage Range
On The Serial Bus
and 75179 Industry Standard Pinouts
(SP3493)
Industry Standard Pinouts (SP3494)
GND
Vcc
R
D
4
1
2
3
SP3493/3494 +3.3V Low Power Slew-Rate Limited RS-485/RS-422 Transceivers
SP3493
D
®
R
6
8
7
5
A
B
Z
Y
RS-485/RS-422 Transceivers
Now Available in Lead-Free Packaging
1
RO 1
RE 2
DE 3
DI 4
+3.3V Low Power
SP3493/SP3494
SP3494
D
R
© Copyright 2002 Sipex Corporation
8
7
6
5
V
B
A
GND
CC
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